31453360

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{20693}}^1$

素因数の和:20725

約数の個数: 40

約数和(自身を含む): 76981680

約数和(自身を除く): 45528320

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 20693, 41386, 82772, 103465, 165544, 206930, 331088, 393167, 413860, 786334, 827720, 1572668, 1655440, 1965835, 3145336, 3931670, 6290672, 7863340, 15726680, 31453360]

約数ペア:

[(1, 31453360), (2, 15726680), (4, 7863340), (5, 6290672), (8, 3931670), (10, 3145336), (16, 1965835), (19, 1655440), (20, 1572668), (38, 827720), (40, 786334), (76, 413860), (80, 393167), (95, 331088), (152, 206930), (190, 165544), (304, 103465), (380, 82772), (760, 41386), (1520, 20693)]